公开(公告)号：NO914749D0

公开(公告)日：1991-12-03

申请号：NO914749

申请日：1991-12-03

Applicant: NOBEL KEMI AB

Inventor： BELLAMY ANTHONY

IPC: C06B21/00 ,  C06B25/04 ,  C07C20060101 ,  C07C201/06 ,  C07C201/16 ,  C07C205/06 ,  C07C

公开(公告)号：CA1292006C

公开(公告)日：1991-11-12

申请号：CA544617

申请日：1987-08-14

Applicant: SANDERS JOSEF

Inventor： SANDERS JOSEF

IPC: C08G18/76 ,  C07C67/00 ,  C07C69/00 ,  C07C201/00 ,  C07C201/06 ,  C07C205/37 ,  C07C213/00 ,  C07C241/00 ,  C07C263/00 ,  C07C263/10 ,  C07C265/12 ,  C08G18/77 ,  C08G18/78 ,  C08L75/04 ,  C07C265/14

Abstract: A PROCESS FOR THE PRODUCTION OF DIISOCYANATES, SELECTED DIISOCYANATES PRODUCED THEREBY AND THE PRODUCTION OF POLYURETHANE PLASTICS THEREFROM Diisocyanates corresponding to a specified formula are produced by reacting an alcohol corresponding to a specified formula with a nitrochlorobenzene in the presence of NaOH and/or KOH in powder form and a strongly polar, aprotic solvent to produce a dinitro compound corresponding to a specified formula. This dinitro compound is hydrogenated to form the corresponding diamine which diamine is phosgenated to produce the corresponding diisocyanate. The resultant diisocyanates may then be used as starting materials in polyisocyanate addition processes.

公开(公告)号：DE3939759A1

公开(公告)日：1991-06-06

申请号：DE3939759

申请日：1989-12-01

Applicant: BAYER AG

Inventor： BLANK HEINZ-ULRICH DIPL CHEM D ,  KRAUS HELMUT DIPL CHEM DR

IPC: B01J27/122 ,  C07B41/06 ,  C07B61/00 ,  C07C201/06 ,  C07C201/12 ,  C07C205/44 ,  C07C253/30 ,  C07C255/56 ,  C07C303/30 ,  C07C309/73 ,  C07C309/86 ,  C07C315/04 ,  C07C317/24

公开(公告)号：YU44906B

公开(公告)日：1991-04-30

申请号：YU201285

申请日：1985-12-20

Applicant: STAUFFER CHEMICAL CO

Inventor： CARTER C G

IPC: A01N35/06 ,  A01N37/34 ,  A01N37/48 ,  A01N41/06 ,  A01N37/08 ,  A01N41/10 ,  A01N47/02 ,  A01P13/00 ,  C07C49/403 ,  C07C67/00 ,  C07C201/00 ,  C07C201/06 ,  C07C205/45 ,  C07C205/49 ,  C07C205/55 ,  C07C213/00 ,  C07C225/22 ,  C07C227/00 ,  C07C227/16 ,  C07C229/46 ,  C07C255/50 ,  C07C255/56 ,  C07C301/00 ,  C07C303/40 ,  C07C311/15 ,  C07C311/16 ,  C07C313/00 ,  C07C317/00 ,  C07C317/24 ,  C07C317/36 ,  C07C317/44 ,  C07C323/22 ,  C07C49/303 ,  C07C79/36 ,  C07C76/02

Abstract: Compounds of the formula wherein R is hydrogen or C1-C4 alkyl; R is hydrogen, C1-C4 alkyl or R -O-@- wherein R is C1-C4 alkyl; R and R together are alkylene having 3 to 6 carbon atoms; R is hydrogen or C1-C4 alkyl; R is hydrogen or C1-C4 alkyl, R is hydrogen or C1-C4 alkyl; R is hydrogen or C1-C4 alkyl; and R and R independently are (1) hydrogen; (2) halogen; (3) C1-C4 alkyl; (4) C1-C4 alkoxy; (5) OCF3; (6) cyano; (7) nitro; (8) C1-C4 haloalkyl; (9) R SOn- wherein n is the integer 0, 1 or 2; and R is (a) C1-C4 alkyl; (b) C1-C4 alkyl substituted with halogen or cyano; (c) phenyl; or (d) benzyl; (10) -NR R wherein R and R independently are hydrogen or C1-C4 alkyl; (11) R C(O)-wherein R is C1-C4 alkyl or C1-C4 alkoxy; or (12) SO2NR R wherein R and R are as defined, with the proviso that R is not attached to the 6-position, are effective as herbicides.

公开(公告)号：DE3928990A1

公开(公告)日：1991-03-07

申请号：DE3928990

申请日：1989-09-01

Applicant: BAYER AG

Inventor： GASSEN KARL-RUDOLF DR ,  MARHOLD ALBRECHT DR

IPC: C07C51/09 ,  C07C51/097 ,  C07C53/21 ,  C07C67/08 ,  C07C67/317 ,  C07C69/653 ,  C07C201/06 ,  C07C201/12 ,  C07C205/02 ,  C07C205/08 ,  C07C231/12 ,  C07C233/05

Abstract: Derivatives of alpha -fluoroacrylic acid are prepared by reacting a dihalopropene with an anhydrous mixture of nitric acid and hydrofluoric acid to give a 1-nitro-2,2-fluorohalo-3-halopropane, converting this compound in the presence of a strong acid and a little water at increased temperature to give a 2,2-fluorohalo-3-halopropionic acid, converting this compound into an ester or an amide, and finally treating the product with a dehalogenating agent.

公开(公告)号：FR2638160B1

公开(公告)日：1990-12-14

申请号：FR8814228

申请日：1988-10-24

Applicant: RHONE POULENC CHIMIE

Inventor： DOUSSAIN CLAUDE ,  GUBELMANN MICHEL ,  POPA JEAN-MICHEL

IPC: C07B61/00 ,  C07C201/08 ,  B01J27/18 ,  C07C205/06 ,  C07C201/06

Abstract: The present invention relates to a process for the preparation of dinitrotoluene by reaction of mononitrotoluene with nitric acid in the liquid phase. The process is characterised in that the reaction is carried out in the presence of an inorganic and acidic solid comprising at least one component chosen from the group consisting of orthophosphoric acid, pyrophosphoric acid, metaphosphoric acid, metal dihydrogenophosphates, metal hydrogenophosphates, metal orthophosphates and metal pyrophosphates derived from metals capable of forming cations carrying from 1 to 5 positive charges.

公开(公告)号：AT58125T

公开(公告)日：1990-11-15

申请号：AT86302903

申请日：1986-04-18

Applicant: ROHM & HAAS

Inventor： PATTERSON DENNIS RAY

IPC: B01J19/12 ,  C07C67/00 ,  C07C201/00 ,  C07C201/06 ,  C07C201/12 ,  C07C205/36 ,  C07C205/38 ,  C07C205/59

Abstract: 3'-Carboxydiphenylethers can be halodecarboxylated utilizing mercuric oxide, molecular halogen, and light in an inert atmosphere at moderate temperatures and at atmospheric pressure to afford 3'-halodiphenylethers.

公开(公告)号：FR2632635B1

公开(公告)日：1990-10-19

申请号：FR8807675

申请日：1988-06-09

Applicant: SEPPIC SA

Inventor： MARI ROGER ,  QUIBEL JACQUES

IPC: C07C201/06 ,  C07C201/14 ,  C07C205/02 ,  C07C79/04 ,  C07C76/02

Abstract: The invention relates to the manufacture of nitromethane. … According to the process a nitrating agent consisting of an oxygen compound of nitrogen is reacted with a carbon compound containing two carbon atoms and at least one atom other than carbon and hydrogen. … Application to the conversion of commonplace products of the chemical industry to nitromethane.

公开(公告)号：DE3764572D1

公开(公告)日：1990-10-04

申请号：DE3764572

申请日：1987-07-17

Applicant: HOECHST AG

Inventor： SCHNEIDER KLAUS-ALBERT DR ,  SIEGEMUND GUENTER DR

IPC: C07C67/00 ,  C07C201/00 ,  C07C201/06 ,  C07C201/08 ,  C07C205/08 ,  C07C205/20 ,  C07C205/26

公开(公告)号：IL77349A

公开(公告)日：1990-07-12

申请号：IL7734985

申请日：1985-12-16

Applicant: STAUFFER CHEMICAL CO

IPC: A01N35/06 ,  A01N37/34 ,  A01N37/48 ,  A01N41/06 ,  A01N41/10 ,  A01N47/02 ,  A01P13/00 ,  C07C49/403 ,  C07C67/00 ,  C07C201/00 ,  C07C201/06 ,  A01N37/08 ,  C07C205/45 ,  C07C205/49 ,  C07C205/55 ,  C07C213/00 ,  C07C225/22 ,  C07C227/00 ,  C07C227/16 ,  C07C229/46 ,  C07C255/50 ,  C07C255/56 ,  C07C301/00 ,  C07C303/40 ,  C07C311/15 ,  C07C311/16 ,  C07C313/00 ,  C07C317/00 ,  C07C317/24 ,  C07C317/36 ,  C07C317/44 ,  C07C323/22 ,  C07C79/36 ,  C07C79/46 ,  C07C121/76 ,  C07C143/78 ,  C07C147/00 ,  C07C149/32 ,  A01N37/10 ,  A01N37/22

Abstract: Compounds of the formula wherein R is hydrogen or C1-C4 alkyl; R is hydrogen, C1-C4 alkyl or R -O-@- wherein R is C1-C4 alkyl; R and R together are alkylene having 3 to 6 carbon atoms; R is hydrogen or C1-C4 alkyl; R is hydrogen or C1-C4 alkyl, R is hydrogen or C1-C4 alkyl; R is hydrogen or C1-C4 alkyl; and R and R independently are (1) hydrogen; (2) halogen; (3) C1-C4 alkyl; (4) C1-C4 alkoxy; (5) OCF3; (6) cyano; (7) nitro; (8) C1-C4 haloalkyl; (9) R SOn- wherein n is the integer 0, 1 or 2; and R is (a) C1-C4 alkyl; (b) C1-C4 alkyl substituted with halogen or cyano; (c) phenyl; or (d) benzyl; (10) -NR R wherein R and R independently are hydrogen or C1-C4 alkyl; (11) R C(O)-wherein R is C1-C4 alkyl or C1-C4 alkoxy; or (12) SO2NR R wherein R and R are as defined, with the proviso that R is not attached to the 6-position, are effective as herbicides.